I think this is the first thing of its kind. It's a website where young English learners from different countries chat in English. There's also a teacher online to moderate and correct.
It's here:
http://maryglasgowmagazines.com/students
The first EFL social-networking site for children/teenagers?
Moderators: Dimitris, maneki neko2, Lorikeet, Enrico Palazzo, superpeach, cecil2, Mr. Kalgukshi2